Pump



Nov. 17, 1931. c. D. cooK 1,832,619

PUMP

Filed Aug. 8. 1927 1 N VEN TOR.

BY I I I, a

I ATTORNEY.

Patented Nov. 17, 1931 UNITED STATES PATENT OFFICE CHARLES D. COOK, OF NEW ORLEANS, LOUISlANA, ASSIG N'OR T JOHNSON MOTOR COM- PANY, OF SOUTH BEND, INDIANA PUMP Application filed August 8, i927. SerialNo. 211,524.

The invention relates to pumps andhas for its object to provide a device of this character comprising a casing, an impeller within the lower end of said casing and a motor carried by said casing, all of which form a pumping unit which may be easily transported from place to place, for instance where the device is used as a bilge pump around a harbor for pumping water from scows or bilges of small craft.

One of the objects of my invention-is to provide a simple type of pump for withdrawing water from man-holes, wells, holds of vessels, and other containers wherein the pump is formed of a light tubesuch as sheet metal which tube is relatively long, being approximately 10 feet or longer and which tube is provided with a basal support so that the tube is adapted to rest upon its bottom portion and thus directly supports its own weight and the weight of an outboard motor carried thereby and wherein the upper portion of the tube is provided with a lateral elbow for discharging the upwardly pumped water and wherein also the upper portion of the tube is provided with a substantially rigid base upon which is mounted an out board motor which motor in turn is provided with a long drive shaft passing downwardly within and throughout the length of the tube and operates to drive a pump rigidly mounted.

within the foot of the tube, by which construction a self-contained, portable pump is provided which may be instantly inserted within relatively deep pockets, wells or other places for pumping the water a relatively great distance upwardly through, the tube and which tube carries thereon its own gas engine, source of fuel, and ignition device and is instantly ready to operate merely by starting the motor.

Still another object of my invention resides in the details of construction of my improved outboard motor pump wherein lightness and portability of the pumping device is provided by forming the water conduit of the pump as a long sheet metal tube of light weight and which tube is internally reenforced atits' base by a rigid skeleton-like frame carrying bottom of said tube and which tube is reenforcedly supported at its top by a cast iron sleeve having a laterally extending elbow connection for discharging the water pumped upwardly through the tube and alsohaving an upstanding hollow sleeve forming at its top a seat whereby a standard outboard motor may be cletachably mounted thereon,

which up-standingsleeve in turn is provided a with a bearing through which passes a long shaft connecting not only with the engine shaft of the outboard motor but likewise extending centrally longitudinally of the axis of the tube and passing through a bearing in I the spider at the base of the tube and connecting and driving the pump therein by means of which construction the outboard motor is carried directly upon the tube and the tube may be carried about and when desired may be installed in relatively deep apertures of its own source of fuel, and its own ignition,

and starter. In certain aspects of the invention, the base of the tube is provided with feet so that the tube may rest directly upon the bottom of the chamber in which the pumping action is taking place and which feet in turn support and space the bottom of the tube from the bottom of the chamber whereby to permit free entrance of water into the pump.

A further obj ect is to provide an auxiliary H impeller for forcing water through a conduit to the water jacket of the engine during the operation of the device, thereby maintaining the engine cool at all times, and obviating the necessity of a'separate cooling system and constant attention by the operator.

A further object is to provide means within the casing for reducing the whirling action of water forced through the casing to 'a minimum.- i

A further object is to dispose within the lower end of the casing an impeller casing in which is rotatablymounted an impeller, which impeller forces water through discharge openings in the impeller easing into the pump casing;

A further object is to provide inclined blades around the impeller casing which blades reduce the whirling action of the water being discharged through the pump casing.

A further object is to provide the upper side of the impeller casing with an auxiliary casing having passages of communication with the chamber of the pump casing, an auxiliary impeller within the auxiliary casing and a conduit connection between the auxiliary impeller casing and the engine whereby the auxiliary impeller will, during the rotation of the impeller drive shaft, force water through the conduit tov the engine water acket.

A further object is to provide the impeller with radially and vertically disposed blades, the lower ends of which terminate in curved portions at their lower edges. which scoop up the water, entering the casing preferably through a screened bottom, thereby giving a maximum scooping eliiciency.

A fur her object is todispose the auxiliary water acket impeller at a point spaced from the upper end of the casing, but preferably adj acentthe lower end thereof, whereby after the pumping of a scow or bilge, and the continued operation of the motor, suilicient water will be accumulated in the vertical portion of the casing for supplying the water jacket of the engine with water for a considerable length of time thereby preventing damage to the engine for a sufiicient time to allow the operator to reach the same for stopping the engine, for instance when theoperator is attending to the operation of a number of devices at different positions.

lVith the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawings, described and claimed, it being understood that changes in the precise embodiment of the invention may bemade within the scope of what is claimed without departing from the spirit of the invention.

In the drawings:

Figure l is a side elevation of the pump.

Figure 2 is a vertical longitudinal sectional view through the pump, parts being shown in elevation to better illustrate the structure.

Figure 3 is a horizontal sectional view taken on line 8-3 of Figure 2.

Figure 4 is a view in elevation of the impeller casing and the adjacent portions of the pump casing broken away to better show the structure.

Figure 5 is a bottom plan view of the inn peller.

Referring to the drawings the nlnneral l designates the pump casing and the chamber therein. The upper end of the pump casing has connected thereto a discharge pipe 3 through which water is discharged as it is pumped, and which discharge pipe may be of any length, for instance su'liiciently long to discharge in a position where the water will flow over board. Extending upwardly from the upper end of the casing 1 and preferably formed integral with the L Jr is an engine base 5, which supports the engine 6, which engine preferably of the relatively light type used at present in connection with out board motors, however it is to be understood that applicant does not limit himself to any particular kind of motor. The engine 6 is provided with a downwardly extending drive shaft 7, which drive shaft is rotatably mount ed in bearings 8, adjacent its upper end and extends axially downwardly into the pump casing 1 and has its lower end rotatably mounted in a bearing 9, carried by the upper side of the auxiliary impeller casing 10. The

lowerend of the shaft 7 extends thr uigh the impeller casing 10 and into the main impeller casing 11, and is provided with a plurality ofradiallydispcsedimpeller blades 12, which are also vertically disposed and form a main impeller 13. The lower ends of the in blades 12 are provided with recesses l-i, receive the annular reinforcing rib 15 carried by the lower end of the main impeller casing 11 and are a so provided with mu'ved lower edges 16, which preferably increase in width from the axis of the impel er lo, and which curved edges scoop up the water during the rotation of the main impeller and force the same upwardly into the impeller casing 11, and through the vertically disposed discharge slots 1'? in the main impe ler casing 11, and thence into the chamber 2 of the pump casing, and thence through the discharge pipe 3 to the point of discharge. Disposed around the impeller casing ll and preferably welded thereto and eng: ing the inner periphery of the casing 1 or we ded thereto are spirally arranged vanes 17", which vanes extend upwardly from the supporting plate 18 and form means wherein; as file water is forced through the discliai'ge slots 17, the whirling action imparted thereto is broken, consequently the whirling of the water within the chamber 2 is reduced to a mini mum, thereby increasing the efficiency of the pumping operation. The lower end of the casing l is provided with a screen 19. which screen allows free passage of water to the pumping device, but will exclude foreign matter and prevent clogging of the part The opposite sides of the cas ng 1 at its lower end are preferably provided with support ing legs 20, which will support the lower end of the casing from the lwttom of a boat. consequently the screen 19 is in a position where water can easily flow throu' h the same.

The upper side of the an. ,iary impeller casing 10 is formed from a screen member 21, .whereby water within the chamber 2 will flow into the auxiliary casing 10 in a position whereby the auxiliary impeller blades 22 can force the same through the conduit 23, which .preferably extends upwardly within the casing 1, and through its upper end at 24 and is connected at 25 to the engine water acket 26, which1s of the usual construction, and

from which jacket water is discharged to the motor 6 at all times, therefore it will be seen that a single operator can place the devices in position, and water will be supplied to the engine as long as the engine is running, thereby allowing the operator to attend a plurality of devices, for instance where they are located on different boats. It will be noted the impeller blades 22 are also carried by the drive shaft 7, therefore both impellers are operated by the same drive shaft.

The chamber 2 of the pump casing 1 holds considerable water, therefore it will be seen that if the operator is at a remote position, for instance attending other devices and the water should be entirely pumped from the boat, said chamber will have sufficient water accumulated therein, whereby during the continued operation of the motor 6, the impeller blades will force water through the conduit 23 to the water jacket, thereby maintaining the engine cool for a considerable length of time until the engine is stopped by the operator. I

From the above it will be seen that a motor driven pump is provided which is relatively light, consequently can be easily and quickly moved from place to place around a harbor for pumping water from craft of various kinds, and the device is constructed in a manner whereby the motor is mounted directly on the pump casing, a pumping impeller used for forcing water through the pump casing, and auxiliary impeller used for maintaining a constant water supply to the engine jacket at all times, and the device is formed as a single unit.

The invention having been set forth what is claimed as new and useful is l. The combination with a portable pump comprising a long tubular casing, an internal combustion engine mounted on the upper end of said casing, a water jacket carried by said internal combustion engine, an impeller within the bottom of the casing and driven by the engine, of an auxiliary impeller driven by the engine within the bottom of the casing, said auxiliary impeller forming means whereby a continuous supply of water is supplied to the water jacket.

2. The combination with a portable pump comprising a casing, an internal combustion engine mounted on the upper end of the casing, a drive shaft carried by the engine and extending downwardly into the casing, an impeller carried by said drive shaft, a

.water jacket carried by the engine, of an auxiliary impeller carried by the drive shaft, said auxiliary impeller being disposed within a casing having ports of communication with the interior of the first mentioned casing, and a pipe connection between the engine water acket and the casing of the auxiliary impeller.

3. A portable pump comprising a casin an internal combustion engine mounted on .the upper end of said casing, a main impeller in the lower end of said casing, a main i1npeller casing surrounding the impeller 1n spaced relation to the wall of the first mentioned casing, spiral vanes interposed between the wall of the main impeller casing and the first mentioned casing, discharge ports in the main impeller casing and discharging adjacent the vanes, an auxiliary impeller casing above the main impeller casing and having ports of communication with the chamber of the first mentioned casing, an

auxiliary impeller in the auxiliary impeller casing, a shaft carried by said engine and extending downwardly through the first mentioned casing and on which the impellers are mounted, a water jacket carried by the engine, and a. pipe connection betweenthe engine water jacket and the auxiliary im peller casing.

4-. In an outboard motor pump, a casing of long tubular construction, a combustion engine mounted thereon, a drive shaft carried by the engine and extending downwardly into the casing, an impeller casing carried by the base of said casing, a water jacket carried by the engine, spaced impellers carried by said shaft within the impeller casing, a pipe connection between one of the chambers of the impeller casing and the'water jacket, and a partition dividing said impeller casing into independent compartments.

5. A portable outboard motor pump comprising a relatively long tube of relatively thin, sheet material, a relatively rigidengine base directly mounted-at the top of said tube, a self-contained outboard motor having its sole support on said engine base and having an extension drive shaft passing downwardly therethrough and extending in and the length ofsaid tube, and a rotary pump mounted in the base of said relatively long tube and driven bysaid shaft, said tube having a water inlet at its base and having a water discharge at its top, and water pumping means at the bottom of the tube operated by the motor for separately supplying cooling water'to the motor.

6. A portable outboard motor pump comprising arelatively long tube of relatively thin, sheet material, the bottom of said tube having a water inlet and being provided with a supporting base wherebyxsaid tube rests directly upon said base, an engine" base mounted directly on the top'of said tube, a

gas engine, a fuel tank, a magneto, a carbureter anda starting mechanism, all mounted on said engine base and having operative connections with the engine whereby to provide a self-contained prime motor, an extension shaft connected with the gas engine shaft and passin through said engine base and through said tube to the base of said tube, a rotary pump mounted in the base of said tube and driven by said shaft, the upper end of said tube having a water outlet whereby water pumped upwardly by said pump will be discharged through said outlet, and means at the bottom of the tube actuated by the engine for separately supplying cooling water for the motor from the bottom of the tube.

7. A relatively light portable gas engine operated pump comprising a long tube of relatively light material having a basal water inlet and a rotary pump mounted in its base, said tube having in its upper end a relatively rigid engine base and having a Water discharge, a water jacketed gas engine mounted directly on said base, and ancillary devices carried thereby including a fuel tank, a magneto and flywheel, a starter, a carbureter, and operative devices therefrom to the engine, said engine crank shaft having a long extension passing through a bearing in said engine base and within and longitudinally of said long tube and operatively connecting to the rotary pump from the base thereof, and pumping means at the bottom of the long tube operated by the engine for separately supplying cooling Water therefrom to the engine jacket independent of the rotary pump.

8. In a device of the class described, the combination with a relatively long tubular member having a water inlet at its base and a water discharge at its top and arranged to be inserted into man-holes and the-like for pumping water upwardly therefrom, a water jacketed gas engine mounted on the upper end of said tubular member and having a. relatively long shaft passing downwardly therethrough to the base of said tubular member, a rotary pump driven by said shaft and located in the base of said tubular member for forcing a column of water upwardly therethrough and out through the discharge thereof, and a second relatively small impeller disposed at the base of said tubular member and having an inlet adapted to receive water that is carried in said tubular member and having an outlet pipe extending within said tubular member upwardly and connected to the water jacket of the gas engine for pumping water thereto.

9. In an outboard motor pump, the combination of a relatively long tubular member having a water inlet at its bottom and a water discharge at its top, an outboard motor mounted on the top of said tubular member and having a relatively long extension and drive shaft passingdownwardly through said tubular member, a rotary pump mounted in the base of said tubular member and operatively driven by said shaft, and a second rotary pump of relatively small dimensions operatively connected to said shaft and located directly above said first mentioned rotary pump, said second mentioned pump having a water inlet adapted to receive its supply of water from the water passing through said tubular member and having a piped outlet connection passing through the tubular member and connected to the water jacket of the engine.

In testimony whereof I affix my signature.

CHARLES D. cool; 

